JPS6248417B2 - - Google Patents
Info
- Publication number
- JPS6248417B2 JPS6248417B2 JP56193877A JP19387781A JPS6248417B2 JP S6248417 B2 JPS6248417 B2 JP S6248417B2 JP 56193877 A JP56193877 A JP 56193877A JP 19387781 A JP19387781 A JP 19387781A JP S6248417 B2 JPS6248417 B2 JP S6248417B2
- Authority
- JP
- Japan
- Prior art keywords
- sound quality
- stereo
- monaural
- quality adjustment
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000003908 quality control method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000005236 sound signal Effects 0.000 description 1
- 235000019640 taste Nutrition 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04H—BROADCAST COMMUNICATION
- H04H40/00—Arrangements specially adapted for receiving broadcast information
- H04H40/18—Arrangements characterised by circuits or components specially adapted for receiving
- H04H40/27—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95
- H04H40/36—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving
- H04H40/45—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving
- H04H40/81—Arrangements characterised by circuits or components specially adapted for receiving specially adapted for broadcast systems covered by groups H04H20/53 - H04H20/95 specially adapted for stereophonic broadcast receiving for FM stereophonic broadcast systems receiving for stereo-monaural switching
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03G—CONTROL OF AMPLIFICATION
- H03G5/00—Tone control or bandwidth control in amplifiers
Landscapes
- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Stereo-Broadcasting Methods (AREA)
- Television Receiver Circuits (AREA)
Description
【発明の詳細な説明】
本発明はステレオ放送時とモノラル放送時とで
それぞれ異なつた音質制御ができる音声多重内蔵
型テレビジヨン受像機に用いられる音質切換装置
を提供することを目的とする。DETAILED DESCRIPTION OF THE INVENTION An object of the present invention is to provide a sound quality switching device for use in a television receiver with built-in audio multiplexing, which allows different sound quality controls for stereo broadcasting and monaural broadcasting.
一般に、音声多重放送のステレオ番組は音楽番
組が多いが、音楽はモノラル放送にくらべて高城
成分まで再生する音質が好まれる。つまりモノラ
ル番組と、ステレオ番組とで、音質の好みが異な
る。視聴者は、放送内容が、ステレオかモノラル
かに応じて、自分の好みにあわせて、いちいち音
質を調節しなければならない。そこで本発明はか
かる欠点を除去するため、ステレオ放送用とモノ
ラル放送用の音質調節機能を独立に用意しておき
それぞれで調節すれば、あとは送りの内容（ステ
レオかモノラルか）に応じて自動的に音質調節装
置を切換えてより視聴者の好みに合致した音再生
が可能となるようにしようとするものであり、以
下本発明の実施例について図面を参照して説明す
る。 In general, many of the stereo programs of audio multiplex broadcasts are music programs, but compared to monaural broadcasts, the sound quality of music that reproduces high quality components is preferred. In other words, tastes in sound quality differ between monaural programs and stereo programs. Viewers must adjust the sound quality to suit their own preferences, depending on whether the broadcast content is stereo or monaural. Therefore, in order to eliminate such drawbacks, the present invention provides sound quality adjustment functions for stereo broadcasting and monaural broadcasting independently, adjusts each separately, and then automatically adjusts the sound quality according to the content of the feed (stereo or monaural). The purpose of this invention is to enable sound reproduction that more closely matches the viewer's preferences by switching the sound quality adjustment device.Examples of the present invention will be described below with reference to the drawings.
第１図に本発明の一実施例における音質切換装
置のブロツク図を示す。第一図において、１はモ
ノラル用音質調節装置であり、２はステレオ用音
質調節装置、４はステレオ・モノラル判別回路、
３は音質調節装置３の切換回路、５は音質調節回
路、５ａはオーデイオ信号入力端子、５ｂは出力
端子である。音質調節回路５の制御信号の切換を
切換回路３で行ない、モノラルの時は装置１から
制御信号が音質調節回路５に入り、ステレオの時
は装置２からの制御信号が音質調節回路５に入
る。ステレオとモノラルとでそれぞれ独立した異
なつた音質調節装置で制御することにより初期の
目的を達成することができる。 FIG. 1 shows a block diagram of a tone quality switching device according to an embodiment of the present invention. In Figure 1, 1 is a monaural sound quality adjustment device, 2 is a stereo sound quality adjustment device, 4 is a stereo/monaural discrimination circuit,
3 is a switching circuit of the sound quality adjustment device 3, 5 is a sound quality adjustment circuit, 5a is an audio signal input terminal, and 5b is an output terminal. Switching of the control signal of the sound quality adjustment circuit 5 is performed by the switching circuit 3. When monaural, the control signal from device 1 enters the sound quality adjustment circuit 5, and when stereo, the control signal from device 2 enters the sound quality adjustment circuit 5. . The initial objective can be achieved by controlling stereo and monaural using separate and different sound quality control devices.
第２図に第１図の装置の要部の具体回路を示
す。第２図において、音質調節回路５は一般的に
用いられているDC音質コントロール回路を用い
ればよい。また、ステレオ・モノラル判別回路４
は音声多重複調回路を用いればよく、ステレオ
時、ハイの信号を出力しそれ以外の時はローの信
号が出力されるように構成されているものであ
る。６はモノラル用音質調節ボリユウム、１２は
ステレオ用音質調節ボリユウムである。ボリユウ
ム６，７の可動端子にそれぞれダイオード１１，
１６アノードを接続し、ダイオード１１，１６の
カソードを共通に接続して、音質調節回路５の直
流音質調節端子に接続する。ボリユウム６，７と
ダイオード１１，１６のカソードとの交点にそれ
ぞれトランジスタ１０，１７のコレクタを接続す
るとともに、コレクタと＋Ｂ間にコレクタ抵抗
９，１５を接続する。音質調節ボリユウム６，１
２とアース間にそれぞれダイオード７，８，１
３，１４を接続する。ステレオ用ボリユウム１２
の可動端子に接続したトランジスタ１７のベース
にトランジスタ１９のコレクタを接続し、コレク
タと＋Ｂ間に抵抗１８を接続し、エミツタはアー
スに接続する。トランジスタ１０，１９のベース
はステレオ・モノラル判別回路に接続する。 FIG. 2 shows a specific circuit of the main part of the device shown in FIG. 1. In FIG. 2, the sound quality control circuit 5 may be a commonly used DC sound quality control circuit. In addition, the stereo/monaural discrimination circuit 4
It is sufficient to use an audio multi-modulation circuit, which is configured to output a high signal during stereo and a low signal at other times. 6 is a monaural sound quality adjustment volume, and 12 is a stereo sound quality adjustment volume. A diode 11 is connected to the movable terminal of the volumes 6 and 7, respectively.
16 anodes are connected, and the cathodes of diodes 11 and 16 are connected in common and connected to the DC sound quality adjustment terminal of the sound quality adjustment circuit 5. The collectors of transistors 10 and 17 are connected to the intersections of the volumes 6 and 7 and the cathodes of diodes 11 and 16, respectively, and collector resistors 9 and 15 are connected between the collectors and +B. Sound quality adjustment volume 6,1
Diodes 7, 8, 1 between 2 and ground, respectively.
Connect 3 and 14. Stereo volume 12
The collector of a transistor 19 is connected to the base of a transistor 17 connected to the movable terminal of the transistor 19, a resistor 18 is connected between the collector and +B, and the emitter is connected to ground. The bases of transistors 10 and 19 are connected to a stereo/monaural discrimination circuit.
以上のように構成しておくとステレオ放送の時
はステレオ・モノラル判別回路４の出力がハイレ
ベルの場合、トランジスタ１０はオンとなり、ダ
イオード１１のアノードをローレベルに下げるた
めダイオード１１はカツトオフとなりモノラル用
音質調整ボリユウム６の電圧は、次段の音質調節
回路５には出力されない。この時、トランジスタ
１９はオン、１７はオフとなり、ステレオ用音質
調整ボリユウム１２の電圧は、ダイオード１６を
介して、出力され音質調節回路５を制御する。モ
ノラル放送の時は、ステレオ・モノラル判別回路
４の出力がローレベルとなるためトランジスタ１
０はオフとなりモノラル用音質ボリユウム６の電
圧はダイオード１１を介して音質調節回路５を制
御する。この時、トランジスタ１９はオフ、１７
はオンとなり、１６のアノードはローレベルとな
るためカツトオフとなり、ステレオ用音質ボリユ
ウム１２の電圧は接続されない。ダイオード７，
８および１３，１４はボリユウムの中点をアース
近辺に調節した時でもダイオード１１または１６
がオンできるようにしたものであり、抵抗９，１
５はトランジスタ１０，１７のコレクタ電圧を安
定に与えるものである。 With the above configuration, during stereo broadcasting, when the output of the stereo/monaural discrimination circuit 4 is at a high level, the transistor 10 is turned on and the anode of the diode 11 is lowered to a low level, so the diode 11 is cut off and the monaural signal is output. The voltage of the sound quality adjustment volume 6 is not output to the next stage sound quality adjustment circuit 5. At this time, the transistor 19 is turned on and the transistor 17 is turned off, and the voltage of the stereo sound quality adjustment volume 12 is outputted via the diode 16 to control the sound quality adjustment circuit 5. During monaural broadcasting, the output of the stereo/monaural discrimination circuit 4 is low level, so the transistor 1
0 is off, and the voltage of the monaural sound quality volume 6 controls the sound quality adjustment circuit 5 via the diode 11. At this time, transistor 19 is off and transistor 17
is turned on and the anode 16 is at a low level, so it is cut off and the voltage of the stereo sound quality volume 12 is not connected. diode 7,
8, 13, and 14 are diodes 11 or 16 even when the center point of the volume is adjusted to near ground.
is designed so that it can be turned on, and the resistor 9,1
Reference numeral 5 provides a stable collector voltage for the transistors 10 and 17.
また音質調節ボリユウムとしてそれぞれ１個の
例を示したが、バストレブルと複数の調節ボリユ
ウムがある場合でもそれぞれモノラル用、ステレ
オ用と独立な調節装置を構成することは可能であ
る。 Furthermore, although one example has been shown for each sound quality adjustment volume, even if there is a bass treble and a plurality of adjustment volumes, it is possible to configure independent adjustment devices for monaural and stereo, respectively.
以上のように本発明によれば、ステレオ放送受
信時はステレオ用音質調節ボリユウムの電圧が、
モノラル放送受信時はモノラル用音質ボリユウム
の電圧が、音質調節回路の制御信号として加わ
り、それぞれ独立にかつ視聴者の好みに合致した
音の再生ができるものである。 As described above, according to the present invention, when receiving a stereo broadcast, the voltage of the stereo sound quality adjustment volume is
When receiving a monaural broadcast, the voltage of the monaural sound quality volume is added as a control signal to the sound quality adjustment circuit, so that sounds can be reproduced independently and in accordance with the viewer's preference.
第１図は本発明の一実施例における音質切換装
置のブロツク線図、第２図は同装置の要部の具体
回路図である。
１……モノラル用音質調節装置、２……ステレ
オ用音質調節装置、３……切換回路、４……ステ
レオ・モノラル判別回路、５……音質調節回路。
FIG. 1 is a block diagram of a tone quality switching device according to an embodiment of the present invention, and FIG. 2 is a specific circuit diagram of the main parts of the device. 1...Mono sound quality adjustment device, 2...Stereo sound quality adjustment device, 3...Switching circuit, 4...Stereo/monaural discrimination circuit, 5...Tone quality adjustment circuit.
Claims (1)
レオ用音質調節装置と、モノラル音質調節ボリユ
ウムを備えるモノラル用音質調節装置と、上記両
装置を切換えていずれか一方を音質調節回路に接
続する切換回路と、ステレオ放送かモノラル放送
かを判別する判別手段とを備え、上記判別手段の
判別出力信号によつて上記切換回路を切換えるこ
とを特徴とする音質切換回路。1. A stereo sound quality adjustment device equipped with a stereo sound quality adjustment volume, a monaural sound quality adjustment device equipped with a monaural sound quality adjustment volume, a switching circuit that switches between the two devices and connects one of them to a sound quality adjustment circuit, and a stereo broadcasting system. a discriminating means for discriminating whether the broadcast is monaural broadcasting or monaural broadcasting, and the switching circuit is switched according to a discriminating output signal of the discriminating means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56193877A JPS5895442A (en) | 1981-12-01 | 1981-12-01 | Tone quality switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56193877A JPS5895442A (en) | 1981-12-01 | 1981-12-01 | Tone quality switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5895442A JPS5895442A (en) | 1983-06-07 |
| JPS6248417B2 true JPS6248417B2 (en) | 1987-10-14 |
Family
ID=16315226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56193877A Granted JPS5895442A (en) | 1981-12-01 | 1981-12-01 | Tone quality switching device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5895442A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0295525U (en) * | 1989-01-12 | 1990-07-30 |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6137647U (en) * | 1984-08-07 | 1986-03-08 | シャープ株式会社 | audio multiplex broadcast receiver |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS567541A (en) * | 1979-07-02 | 1981-01-26 | Nissan Motor Co Ltd | Fm radio for vehicle |
-
1981
- 1981-12-01 JP JP56193877A patent/JPS5895442A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS567541A (en) * | 1979-07-02 | 1981-01-26 | Nissan Motor Co Ltd | Fm radio for vehicle |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0295525U (en) * | 1989-01-12 | 1990-07-30 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5895442A (en) | 1983-06-07 |
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